Insert the windows XP CD and restart, press any key to boot from it.Do not press a function key if asked to do so during this process. Those options are only necessary when installing Windows XP or reinstalling Windows XP and only then in certain circumstances. When the Windows XP Professional/Home Setup screen appears, press R to enter Recovery Console.If it asks you for which installation you want to access press 1 and enter.Type the administrator password, if you do not have one press enter.The Recovery Console is now fully loaded and the cursor should be sitting at the prompt, ready for a command.Now execute the 2 commands below separately, to do that you just have to type them one by one and hit enter.
copy d:\i386\ntldr c:\
copy d:\i386\ntdetect.com c:\
If it asks you to overwrite these files, say Y and hit enter.Now take off the windows XP CD, type exit and press enter.If NTDLR is the only problem, then windows XP should start normally.If it doesn't, please update this.